33     double fx0, fy0, xtemp, x, y, mu;  in calc_one_pixel()  local
43     x = 0;  in calc_one_pixel()
47     while (((x * x + y * y) <= 4) && (iter < max_iterations)) {  in calc_one_pixel()
48         xtemp = x * x - y * y + fx0;  in calc_one_pixel()
49         y = 2 * x * y + fy0;  in calc_one_pixel()
50         x = xtemp;  in calc_one_pixel()
51         mu += exp(-sqrt(x * x + y * y));  in calc_one_pixel()
79         for (int x = 0; x < size_x; ++x) {  in clear()  local
112         for (int x = x0; x < x1; ++x) {  in render_rect()  local
113             area.put_pixel(calc_one_pixel(x, y));  in render_rect()
157 bool fractal::check_point(int x, int y) const {  in check_point()  argument
158     return x >= off_x && x <= off_x + size_x && y >= off_y && y <= off_y + size_y;  in check_point()
259 void fractal_group::mouse_click(int x, int y) {  in mouse_click()  argument
263     if (f0.check_point(x, y)) {  in mouse_click()
267     else if (f1.check_point(x, y)) {  in mouse_click()